MusicStore | example project created in the bilibili instructional video | Video Utils library

when I'm trying to run the MusicStore sample described here the download of docker images breaks with following error.

Can someone confirm this?

I'm developing the Music Store sample app with ASP.NET MVC, Entity Framework and WCF.

This is a layered application which has a common layer for the entities.

in the AddToCart Action method , the Album object is populates fine but after the Cart save when wcf loads the cart object the associated Album object is Null, may be some serialization issue (I have not idea), in the view @foreach (var item in Model.CartItems) the item.Album.Title becomes null

This is my code:

I'm developing the Music Store sample app with ASP.NET MVC, Entity Framework and WCF.

This is a layered application which has a common layer for the entities.

I have written a seed method which works fine, but when I try to add an Album to the Cart, another duplicate Album is also adding to the Album table plus duplicate Artists are also added. This happens when I add Album = album statement when populating the Cart object. I added this statement since when I create my view it generates null for item.Album.Title entry

This is my code:

I'm trying to start MusicStore application at Raspberry Pi 3 using Windows IoT system with .NET Core 2.0.4.

I managed to run it on Raspberry using ubuntu, but in Windows, I get an error from screenshot (sorry for not copying it but I didn't get error in putty so I need to use Windows IoT command line and I'm not able to copy this text anywhere).

Both systems were connecting to the database on my PC and linux was able to run application, while Windows is failing, so this is not fault of connection string. I previously had problem with missing sni.dll but as suggested in this thread I repaired it by copying unix.

Any ideas what's wrong?

EDIT: Today i tested it on my old PC (win10-x64) i got same error as on Windows-IoT so i can copy it here.

I just want to know what is the meaning of this error? The INSERT statement conflicted with the FOREIGN KEY constraint "FK__thumbnail__instr__160F4887". The conflict occurred in database "MusicStoreDB", table "dbo.instrumentItem", column 'instrumentId'. The statement has been terminated.

Here is the stack trace:

I have a problem with displaying images in my website using asp.net. Originally I have it all working successfully when i haven't integrated yet a strongly typed data control in my repeater. Here is the code previously:

I have a sample MVC web application built using ASP.NET Core. I have also enabled account confirmation so when users register, they receive an email confirmation. My web app runs fine and account confirmation works fine when I run it locally using Kestrel server on my development machine (http://localhost:5000).

Now I have published my web app to my Ubuntu server running Apache web server using reverse proxy (https://musicstore.paul.kim). I have obtained a free SSL certificate for musicstore.paul.kim using Let's Encrypt. I've set the reverse proxy to forward requests from http://localhost:5000 to https://musicstore.paul.kim. Everything seems to run fine except the account confirmation doesn't work. When I try to register a new user by entering an email and creating a password, I get an email via SendGrid with a link to confirm my email. When I click on that link, I am taken to my web app and an error message is displayed rather than having the email confirmed. I looked at my log file and the error message is "Microsoft.AspNetCore.Identity.UserManager[9] VerifyUserTokenAsync() failed with purpose: EmailConfirmation for user 54a1c48c-4af7-454a-9c57-6b78c671be56."

Why is account confirmation not working on Apache with reverse proxy?

How can I get it working?

i had this exception problem when i tried out implementing an sqlparameter collection. the exception says:

An exception of type 'System.InvalidCastException' occurred in System.Data.dll but was not handled in user code Additional information: The SqlParameterCollection only accepts non-null SqlParameter type objects, not SqlParameter[] objects.

Here is also the source error:

Server Error in '/' Application.

The SqlParameterCollection only accepts non-null SqlParameter type objects, not SqlParameter[] objects.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidCastException: The SqlParameterCollection only accepts non-null SqlParameter type objects, not SqlParameter[] objects.

Source Error:

Line 197: if (p != null) Line 198: if (p.Any()) Line 199: command.Parameters.Add(p); Line 200: } Line 201:

Source File: c:\Users\User1\Documents\Visual Studio
2015\WebSites\MusicStore\Pages\OverviewGuitarData.aspx.cs Line: 199

Stack Trace:

[InvalidCastException: The SqlParameterCollection only accepts non-null SqlParameter type objects, not SqlParameter[] objects.] System.Data.SqlClient.SqlParameterCollection.ValidateType(Object value) +5734517 System.Data.SqlClient.SqlParameterCollection.Add(Object value) +23 Pages_OverviewData.GetExample(SqlCommand command, SqlParameter[] p) in c:\Users\User1\Documents\Visual Studio 2015\WebSites\MusicStore\Pages\OverviewGuitarData.aspx.cs:199 Pages_OverviewData.GuitarBrandsGridView_RowUpdating(Object sender, GridViewUpdateEventArgs e) in c:\Users\User1\Documents\Visual Studio 2015\WebSites\MusicStore\Pages\OverviewGuitarData.aspx.cs:157 System.Web.UI.WebControls.GridView.OnRowUpdating(GridViewUpdateEventArgs e) +122 System.Web.UI.WebControls.GridView.HandleUpdate(GridViewRow row, Int32 rowIndex, Boolean causesValidation) +792 System.Web.UI.WebControls.GridView.HandleEvent(EventArgs e, Boolean causesValidation, String validationGroup) +877 System.Web.UI.WebControls.GridView.OnBubbleEvent(Object source, EventArgs e) +89 System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37 System.Web.UI.WebControls.GridViewRow.OnBubbleEvent(Object source, EventArgs e) +90 System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +37 System.Web.UI.WebControls.Button.OnCommand(CommandEventArgs e) +114 System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +260 System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler. RaisePostBackEvent(String eventArgument) +12 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +15 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +35 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1639

And here a part of my code where the sqlparameter originated:

here is the error that came up after attempting to execute my website. This is related to my previous question but different objective this time. Here is the link if you want to refer back to it. How to code a nested sql statement to get row number of a specific item in mssql?

Below is an image of the server error.

Its referring to the Int32 count = (Int32)cmd.ExecuteScalar(); that i wrote in my code. Here is the full code. I have also added a comment to where the error originated.